BUICK Differential & Rear-End Components Transmission & Drivetrain - In Stock Filter Options - Vendor In Stock Filter Options - Free Shipping on Orders Over $109 at Summit Racing

USA Standard Gear Spartan Locker Replacement Crosspins SL XP-GM8.5

Crosspin, Replacement, Steel, Spartan, GM 8.5 in., Each

Part Number: SPZ-17024

Not Yet Reviewed

Estimated Ship Date: Feb 16, 2026 if ordered today

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Estimated Ship Date: Feb 16, 2026 if ordered today

Motive Gear Basic Ring and Pinion Gear Installation Kits R10RL

Ring and Pinion Installation Kit, Basic, GM 8.6 in., Front/Rear, Kit

Part Number: MGR-R10RL

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Feb 18, 2026 if ordered today

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Estimated Ship Date: Feb 18, 2026 if ordered today

Richmond Gear EXCel Mini Spools XL-5145

Mini Spool, MINI SPOOL GM 12 BOLT CAR

Part Number: RMG-XL-5145

Not Yet Reviewed

Estimated Ship Date: Feb 17, 2026 if ordered today

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Estimated Ship Date: Feb 17, 2026 if ordered today

Motive Gear Differential Crush Sleeves 3120

Crush Sleeve, CRUSH SLEEVE GM9.3" 1963-1964

Part Number: MGR-3120

Not Yet Reviewed

Estimated Ship Date: Feb 18, 2026 if ordered today

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Estimated Ship Date: Feb 18, 2026 if ordered today

USA Standard Gear Axle Shafts, Direct Fit ZA K630603

Axle 8.0" GM REAR, '02-'09 MIDSIZE SUV (GMT360), LEFT HAND, 33-1/4", 28spl, 6 LUG, 1 SIDE

Part Number: SPZ-12176

Not Yet Reviewed

Estimated Ship Date: Feb 16, 2026 if ordered today

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Estimated Ship Date: Feb 16, 2026 if ordered today

USA Standard Gear Axle Shafts, Direct Fit ZA K630152

Axle 8.6" GM REAR, '02-'09 MIDSIZE SUV (GMT360), LEFT HAND, 33-1/16", 30spl, 6 LUG, 1 SIDE

Part Number: SPZ-11962

Not Yet Reviewed

Estimated Ship Date: Feb 16, 2026 if ordered today

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Estimated Ship Date: Feb 16, 2026 if ordered today

USA Standard Gear Axle Shafts, Direct Fit ZA K630153

Axle 8.6" GM REAR, '02-'09 MIDSIZE SUV (GMT360), RIGHT HAND, 31-9/16", 30spl, 6 LUG, 1 SIDE

Part Number: SPZ-11963

Not Yet Reviewed

Estimated Ship Date: Feb 16, 2026 if ordered today

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Estimated Ship Date: Feb 16, 2026 if ordered today

Motive Gear Light-Duty Axle Shafts 26018080

Axle Shaft, Light-Duty, Rear, C-clip, 30-spline Inner, 30.375 in. Length, GM 8.5 in., Buick, Cadillac, Chevy

Part Number: MGR-26018080

Not Yet Reviewed

Estimated Ship Date: Feb 19, 2026 if ordered today

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Estimated Ship Date: Feb 19, 2026 if ordered today

Motive Gear Super Ring and Pinion Gear Installation Kits R10RSK

Ring and Pinion Installation Kit, Super Kit, GM, 8.5 in., Kit

Part Number: MGR-R10RSK

3.0 out of 5 stars ( 1 )

Estimated Ship Date: Feb 19, 2026 if ordered today

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Estimated Ship Date: Feb 19, 2026 if ordered today

Alloy USA Differential Master Overhaul Kits 352021

Ring and Pinion Gear Installation Kit, 10-Bolt, 30 Pinion Spline Count, Gear Rotation Standard, Chevy, GMC, Buick, Pontiac, Oldsmobile, Cadillac, Kit

Part Number: ALY-352021

4.0 out of 5 stars ( 1 )

Estimated Ship Date: Feb 20, 2026 if ordered today

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Estimated Ship Date: Feb 20, 2026 if ordered today

Zumbrota Remanufactured Axle Assemblies RAA440-1371E

Axle Assembly, Remanufactured, Open, 3.73:1 Ratio, Each

Part Number: ZUD-RAA440-1371E

Not Yet Reviewed

Estimated Ship Date: Feb 13, 2026 if ordered today

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Estimated Ship Date: Feb 13, 2026 if ordered today

Call to Order

Motive Gear Master Ring and Pinion Installation Kits RG8RMK

Ring and Pinion Installation Kit, Master Kit, Incl. Bearing Kit Plus Ring Gear Bolts/Pinion Shims/Carr

Part Number: MGR-RG8RMK

Not Yet Reviewed

Estimated Ship Date: Feb 19, 2026 if ordered today

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Estimated Ship Date: Feb 19, 2026 if ordered today

Motive Gear Basic Ring and Pinion Gear Installation Kits R10RET

Ring and Pinion Installation Kit, Basic, GM 8.5 in., Front/Rear, Kit

Part Number: MGR-R10RET

2.0 out of 5 stars ( 1 )

Estimated Ship Date: Feb 18, 2026 if ordered today

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Estimated Ship Date: Feb 18, 2026 if ordered today

Motive Gear Ring and Pinion Gear Installation Kits R10RLEMK

Differential Bearing Kit, Differential Bearing Kit - Koyo

Part Number: MGR-R10RLEMK

Not Yet Reviewed

Estimated Ship Date: Feb 18, 2026 if ordered today

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Estimated Ship Date: Feb 18, 2026 if ordered today

Motive Gear Basic Ring and Pinion Gear Installation Kits R10RLT

Ring and Pinion Installation Kit, Basic, GM 8.6 in., Front/Rear, Kit

Part Number: MGR-R10RLT

Not Yet Reviewed

Estimated Ship Date: Feb 18, 2026 if ordered today

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Estimated Ship Date: Feb 18, 2026 if ordered today

Richmond Gear EXCel Ring and Pinion Gear Installation Kits XL-1023-1

Ring and Pinion Kit

Part Number: RMG-XL-1023-1

Not Yet Reviewed

Estimated Ship Date: Feb 18, 2026 if ordered today

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Estimated Ship Date: Feb 18, 2026 if ordered today

Richmond Gear EXCel Ring and Pinion Sets GM75390TK GM 7.5/7.625 in. 3.90 Gears

Ring and Pinion Kit

Part Number: RMG-GM75390TK

Not Yet Reviewed

Estimated Ship Date: Feb 18, 2026 if ordered today

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Estimated Ship Date: Feb 18, 2026 if ordered today

Richmond Gear EXCel OEM Replacement Axle Shafts 92-25142

Axle Shaft

Part Number: RMG-92-25142

Not Yet Reviewed

Estimated Ship Date: Feb 18, 2026 if ordered today

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Estimated Ship Date: Feb 18, 2026 if ordered today

Richmond Gear EXCel OEM Replacement Axle Shafts 92-25150

Axle Shaft, OEM Replacement, 28-Spline, Buick, Cadillac, Chevy, Oldsmobile, Pontiac, 7.5 in., Rear, Each

Part Number: RMG-92-25150

Not Yet Reviewed

Estimated Ship Date: Feb 18, 2026 if ordered today

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Estimated Ship Date: Feb 18, 2026 if ordered today

Richmond Gear EXCel OEM Replacement Axle Shafts 92-25182

Axle Shaft, 28-Spline, Buick, Chevy, GMC, Oldsmobile, 8.0 in., Driver Side Rear, Each

Part Number: RMG-92-25182

Not Yet Reviewed

Estimated Ship Date: Feb 18, 2026 if ordered today

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Estimated Ship Date: Feb 18, 2026 if ordered today

Richmond Gear EXCel Ring and Pinion Sets GM75323 GM 7.5/7.625 in. 3.23 Gears

Ring and Pinion Kit

Part Number: RMG-GM75323

Not Yet Reviewed

Estimated Ship Date: Feb 18, 2026 if ordered today

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Estimated Ship Date: Feb 18, 2026 if ordered today

USA Standard Gear Axle Shafts, Direct Fit ZA K630117

Axle 8.5" GM REAR91-96 PASS30-3/8", 30spl, 5 x 5 BP, METRIC 12mm STUDS, 1563 BRG, 1 SIDE

Part Number: SPZ-11933

Not Yet Reviewed

Estimated Ship Date: Feb 16, 2026 if ordered today

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Estimated Ship Date: Feb 16, 2026 if ordered today

USA Standard Gear Axle Shafts, Direct Fit ZA K630142

Axle 8.2" & 8.5" GM REAR, '73-'88 PASSENGER CARS, 30-1/2", 28spl, 2.780" PILOT, 1563 BRG, 1 SIDE

Part Number: SPZ-11952

Not Yet Reviewed

Estimated Ship Date: Feb 16, 2026 if ordered today

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Estimated Ship Date: Feb 16, 2026 if ordered today

Motive Gear Basic Ring and Pinion Gear Installation Kits R10RT

Ring and Pinion Installation Kit, Basic, GM 8.5 in., Front/Rear, Kit

Part Number: MGR-R10RT

1.0 out of 5 stars ( 1 )

Estimated Ship Date: Feb 18, 2026 if ordered today

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Estimated Ship Date: Feb 18, 2026 if ordered today

Yukon Gear & Axle 30 Spline Differential Carrier Cases GM 8.875 Inch (12-bolt) YC GM12P-DG-3

Differential Carrier Case, Limited Slip Carrier Style, 30-spline, Nodular Iron, Rear, GM 8.875 in. (12-bolt) Pass. Car, Buick, Chevy, Pontiac, Each

Part Number: YGA-20104

Not Yet Reviewed

Estimated Ship Date: Mar 2, 2026 if ordered today

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Estimated Ship Date: Mar 2, 2026 if ordered today